Grinding device



FIG. 1 is a perspective view of a grinding device showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspertive view thereof, shown in an open position.

The broken lines depicts portions of the grinding device that form nopart of the claimed design.

CLAIM The ornamental design for a grinding device, as shown anddescribed.